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