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