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