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