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