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