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