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