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