One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6)(7,8)(9,10)(11,15)(12,14)(13,16)(17,18,22,20)(19,24,27,23)(21,25,30,28)(26,32,29,31)(1,3)(2,4)(5,8)(6,7)(9,10,12,14)(11,13,16,15)(17,19,22,27)(18,23,20,24)(21,26,30,29)(25,31,28,32)(1,2,6,5)(3,8,7,4)(9,10)(11,13)(12,14)(15,16)(1,4)(2,7)(3,5)(6,8)(9,11,12,16)(10,13,14,15)(17,20,22,18)(19,23,27,24)(21,28,30,25)(26,31,29,32)(1,4)(2,3)(5,7)(6,8)(17,19)(18,24)(20,23)(21,29)(22,27)(25,31)(26,30)(28,32) involution — undirected(1,5,6,2)(3,8,7,4)(17,21)(18,25)(19,26)(20,28)(22,30)(23,31)(24,32)(27,29)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.