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