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)(17,18,24,28)(19,29,31,21)(20,23,27,22)(25,26,32,30)(2,5)(6,8)(17,19,22,30,24,31,23,26)(18,25,27,29,28,32,20,21)(9,11,12,16)(10,13,14,15)(17,20,22,18,24,27,23,28)(19,25,30,29,31,32,26,21)(1,3,4,7)(2,6,5,8)(17,21,23,32,24,29,22,25)(18,26,20,31,28,30,27,19)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.