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