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