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