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