One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,6,4)(11,12)(14,15)(17,18)(19,23)(20,24)(21,25)(22,26)(27,30)(28,31)(29,32)(1,3)(2,4)(5,6)(7,8)(9,10,13,16)(11,14,12,15)(19,26)(22,23)(27,32)(29,30)(9,11,13,12)(10,14,16,15)(17,19)(18,22)(20,27)(21,26)(23,25)(24,29)(28,32)(30,31)(1,4,5,8)(2,6,7,3)(9,10)(11,14)(12,15)(13,16)(17,19)(18,23)(20,27)(21,26)(22,25)(24,30)(28,32)(29,31)(1,3)(2,4)(5,6)(7,8)(9,12,13,11)(10,15,16,14)(17,20,21,28)(18,24,25,31)(19,27,26,32)(22,29,23,30)(1,4)(2,3)(5,8)(6,7)(17,18)(19,22)(20,24)(21,25)(23,26)(27,29)(28,31)(30,32) involution — undirectedA 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.