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)(11,13)(12,14)(15,16)(17,18,20,22)(19,23,24,21)(25,26,29,31)(27,32,30,28)(2,4)(3,7)(9,10,12,14)(11,13,15,16)(19,24)(21,23)(27,30)(28,32)(2,4)(6,8)(11,15)(13,16)(17,19)(18,21)(20,24)(22,23)(25,27,29,30)(26,28,31,32)(1,3)(2,6)(4,8)(5,7)(9,10)(11,16)(12,14)(13,15)(17,18)(19,21)(20,22)(23,24) involution — undirected(1,4,5,2)(3,6,7,8)(9,11,12,15)(10,13,14,16)(17,19)(18,21)(20,24)(22,23)(25,28)(26,30)(27,31)(29,32)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.