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