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