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