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