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