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)(20,30)(21,26)(22,27)(23,28)(25,31)(29,32)(9,11,12,16)(10,13,14,15)(17,19)(18,24)(20,21)(22,25)(23,29)(26,30)(27,31)(28,32)(2,5)(6,8)(17,20,23,31)(18,25,28,30)(19,27,29,21)(22,24,26,32)(1,2)(3,6)(4,5)(7,8)(17,20)(18,25)(19,21)(22,24)(23,31)(26,32)(27,29)(28,30) involution — undirected(1,3,4,7)(2,6,5,8)(17,21)(18,26)(19,20)(22,28)(23,27)(24,30)(25,32)(29,31)(17,22,23,26)(18,27,28,21)(19,25,29,30)(20,24,31,32)A 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.