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