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