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