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