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