GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#g2 % space group to the point group of min.108.2.4 and cozycle coz 6 % generator -1 0 0 0 0 0 0 1 0 0 -1 0 0 1 0 -1 -1 0 0 1 -1 0 0 0 0 0 0 0 -1 0 0 0 0 0 0 1 6 % generator 1 0 0 0 0 0 0 1 0 -1 -1 0 0 1 0 0 -1 0 0 0 0 0 -1 0 0 1 -1 0 0 0 0 0 0 0 0 1 % order of the group unknown