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