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