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