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