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