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