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