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