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