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