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