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