GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
1
prime 11
class 3
generators {a, b, c}
relations {a^11, b^11, c^11, [b, a, a, a, b, a] = 1,
[c, a] = 1, [c, b] = 1, [b, a, b]} ;
2
Standard
8
11
1 0 0 0 0
0 1 0 0 1
0 0 1 0 0
1 0 0 0 0
0 1 0 0 0
0 0 1 0 1
1 0 9 0 0
0 1 0 0 0
0 0 1 0 0
1 7 8 0 0
0 1 0 0 0
0 0 1 0 0
10 0 0 0 0
0 1 0 0 0
0 0 1 0 0
2 0 0 0 0
0 1 0 0 0
0 0 1 0 0
1 0 8 0 0
0 1 3 0 0
0 0 1 0 0
1 0 9 0 0
0 1 0 0 0
0 0 3 0 0
1 0 2 0 0
0 1 0 0 0
0 0 10 0 0
1 9 10 0 0
0 3 7 0 0
0 0 6 0 0
1 5 9 0 0
0 7 4 0 0
0 0 10 0 0
1
0