GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#g2 f1 z1 c1 3x 3 0 1 0 1 0 0 0 0 1 3x 3 -1 0 1 0 0 1 0 -1 1 3x 3 3 -1 -1 -1 3 -1 -1 -1 3 3d0 % zentr -1 3d0 % cen -1 2^4 * 3^1 = 48 %order of the group
GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#g2 f1 z1 c1 3x 3 0 1 0 1 0 0 0 0 1 3x 3 -1 0 1 0 0 1 0 -1 1 3x 3 3 -1 -1 -1 3 -1 -1 -1 3 3d0 % zentr -1 3d0 % cen -1 2^4 * 3^1 = 48 %order of the group