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