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