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