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