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