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