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