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