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