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