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