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)(19,23)(20,22)(21,24)(25,26,28,30)(27,29,32,31)(2,5)(6,8)(9,10)(11,15)(12,13)(14,16)(17,19,20,24)(18,21,22,23)(25,27,28,32)(26,29,30,31)(10,13)(14,15)(18,22)(21,23)(26,30)(29,31) involution — undirected(1,2)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16)(17,19)(18,23)(20,24)(21,22)(25,26)(27,31)(28,30)(29,32) involution — undirected(1,3)(2,6)(4,7)(5,8)(9,11)(10,14)(12,16)(13,15)(17,18)(19,23)(20,22)(21,24)(25,27)(26,31)(28,32)(29,30) 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.