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