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