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