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)(11,13)(12,14)(15,16)(17,18,23,21)(19,20,25,29)(22,31,27,26)(24,32,30,28)(2,5)(3,7)(9,10)(11,15)(12,14)(13,16)(17,19,27,32,23,25,22,28)(18,24,31,29,21,30,26,20)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(17,20)(18,25)(19,21)(22,30)(23,29)(24,27)(26,32)(28,31)(1,3,4,7)(2,6,5,8)(11,16)(13,15)(17,21,23,18)(19,20,25,29)(22,26,27,31)(24,32,30,28)(10,14)(13,15)(18,21)(20,29)(24,30)(26,31) 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.