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