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