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