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