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)(17,18,21,27,23,28,22,24)(19,25,29,32,30,31,20,26)(2,3)(9,11,12,16)(10,13,14,15)(18,24)(19,20)(21,22)(25,31)(27,28)(29,30)(10,14)(13,15)(17,19,22,20,23,30,21,29)(18,25,24,26,28,31,27,32)(1,3,4,2)(6,8)(11,16)(13,15)(17,20,22,30,23,29,21,19)(18,26,24,31,28,32,27,25)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.