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