GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#34 6x6 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 -1 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 6x6 0 0 0 0 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 -1 0 1 0 0 1 0 0 0 6x6 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 -1 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 6x6 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 0 -1 1 1 0 0 0 0 0 0 0 -1 0 0 1 0 1 0 0 0 0 6x6 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 -1 0 0 0 0 1 1 6x6 0 0 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 -1 1 1 0 0 0 0 -1 1 6x6 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 -1 1 6x6 0 0 0 1 0 0 0 1 0 1 0 0 0 -1 1 0 0 0 1 0 0 0 0 0 0 0 -1 0 1 1 0 0 0 0 -1 1 6x6 0 0 0 1 0 0 0 1 0 1 1 0 0 -1 0 0 1 0 0 0 1 0 0 -1 1 0 0 0 0 0 0 0 1 0 0 1 6x6 0 0 1 0 0 0 0 1 1 0 1 0 0 -1 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 -1 0 0 0 1 0 1 6x6 1 0 0 0 0 0 1 1 0 0 1 0 0 -1 0 0 1 0 0 0 1 0 0 -1 0 0 0 1 0 0 0 0 1 -1 0 1 6x6 0 0 1 1 0 0 0 0 1 -1 1 1 0 0 0 0 -1 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 6x6 0 1 0 0 -1 0 0 1 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 -1 0 1 0 0 1 1 0 0 6x6 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 -1 1 0 0 0 0 0 0 -1 0 0 1 0 0 0 1 0 0 1 6x6 0 0 1 1 0 0 0 0 1 -1 1 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 -1 1 0 0 0 0 1 1 6x6 0 0 1 0 -1 0 0 0 1 0 1 1 0 1 0 -1 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 6x6 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 -1 0 0 0 0 1 0 -1 0 0 1 0 1 0 0 0 0 1 0 1 6x6 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 -1 0 0 -1 0 1 0 1 0 0 1 0 1 0 0 0 0 -1 0 1 6x6 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 -1 -1 0 0 1 0 0 0 0 0 0 1 1 -1 0 0 0 1 1 1 6x6 0 0 1 0 0 0 0 1 1 1 -1 0 0 0 0 0 -1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 -1 0 1 0 -1 6x6 1 0 0 0 0 0 1 0 0 0 0 1 0 1 0 1 0 -1 0 0 1 0 -1 1 0 -1 0 1 0 0 0 0 1 0 1 0 6x6 0 0 1 1 0 0 0 1 1 0 0 0 0 -1 0 -1 1 1 1 0 0 0 0 0 0 0 0 0 -1 1 0 0 0 0 1 1 6x6 0 0 0 0 1 1 0 0 1 1 0 0 0 0 -1 1 -1 1 1 0 0 0 0 0 0 0 -1 1 1 -1 0 1 0 0 0 0 6x6 0 -1 1 0 1 0 0 0 1 -1 0 1 0 -1 0 1 -1 1 1 0 0 0 0 0 0 1 0 1 1 1 0 0 1 0 0 0 6x6 0 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 -1 -1 0 0 1 -1 1 -1 6x6 0 -1 1 0 0 1 0 0 1 -1 -1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 -1 0 -1 1 -1 0 1 0 -1 1 1 6x6 1 0 0 1 0 0 1 0 0 -1 1 1 0 0 0 0 1 -1 0 1 -1 0 0 0 0 0 0 0 1 1 0 1 1 0 0 0 6x6 1 0 0 0 0 0 1 1 1 0 0 0 0 -1 1 0 0 0 0 0 0 1 -1 -1 0 0 0 1 1 -1 0 0 0 1 1 1 6x6 1 1 0 0 0 0 1 -1 1 0 1 0 0 0 -1 0 1 0 0 0 0 1 0 -1 0 0 1 1 1 -1 0 0 0 1 0 1 6x6 0 1 -1 0 0 0 0 1 1 1 0 0 0 0 0 -1 0 0 1 0 0 0 0 0 0 0 0 1 2 0 0 0 0 1 0 2 6x6 0 0 0 -1 1 0 0 0 1 0 0 1 0 0 -1 1 1 1 1 -1 0 0 0 0 0 0 1 1 1 -1 1 1 0 0 0 0 6x6 0 1 0 0 0 -1 0 0 1 1 0 0 0 1 -1 1 0 1 1 0 0 0 0 0 0 1 1 -1 0 1 0 -1 1 -1 2 -1 6x6 0 1 0 0 -1 0 0 0 1 1 0 -1 0 1 -1 1 -1 1 1 0 0 0 0 0 0 1 1 -1 1 1 0 -1 1 -1 -1 1 6x6 1 1 -1 0 1 -1 1 1 1 1 0 0 0 0 0 -1 1 -1 1 -1 -1 0 0 0 0 0 0 1 1 1 0 0 0 1 -1 -1