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