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