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