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