G:=Group( (1,2)(4,5)(6,7)(8,9), (2,3,4)(5,8,6)(9,11,10) ); 
F:=FreeGroup(2);
F.relators:=[F.1^2,F.2^3,(F.1*F.2)^11,((F.1*F.2)^4*(F.1*F.2^-1)^5)^2];
K:=Subgroup(F,[F.2,F.1*F.2*F.1*F.2^-1*F.1]);
m2 :=
[
[[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 0, 1, 0, 1, 0, 0, 1],
[0, 0, 0, 1, 0, 1, 0, 1, 1, 1],
[0, 0, 0, 1, 1, 0, 0, 1, 1, 0],
[0, 0, 1, 1, 0, 1, 1, 1, 0, 1],
[0, 0, 1, 0, 0, 1, 0, 1, 0, 0],
[0, 0, 0, 1, 1, 1, 1, 1, 0, 0],
[0, 0, 0, 1, 1, 0, 1, 1, 0, 1],
[0, 0, 1, 1, 0, 1, 1, 0, 1, 1]],

[[0, 0, 1, 1, 1, 1, 1, 1, 1, 0],
[0, 0, 1, 0, 1, 0, 1, 0, 0, 1],
[1, 1, 1, 1, 1, 0, 0, 0, 1, 1],
[1, 0, 1, 0, 0, 1, 0, 0, 1, 0],
[0, 1, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 0, 0, 0, 0, 0, 0, 1, 1],
[1, 1, 0, 0, 1, 1, 0, 1, 1, 1],
[1, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 0, 1, 0, 0, 1, 0, 1, 0, 0],
[0, 0, 0, 1, 1, 1, 1, 1, 0, 0]]

]*Z(2);
