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