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