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