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