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