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