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