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