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