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