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