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