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