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