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