One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,9,6,10,4,8)(3,11,14,15,12,7,13,16)(17,18)(19,29)(20,34,37,42)(21,27)(22,26)(23,28)(24,31)(25,36,41,35)(30,44,47,38)(32,40)(33,39)(43,46,48,45)(1,3,4,13,6,12,5,14)(2,7,9,16,10,11,8,15)(17,19,22,32,23,33,21,31)(18,24,27,39,28,40,26,29)(20,30,36,46,37,47,35,45)(25,38,42,48,41,44,34,43)(2,8,10,9)(7,15,11,16)(17,20,22,36,23,37,21,35)(18,25,26,34,28,41,27,42)(19,30,32,46,33,47,31,45)(24,38,29,43,40,44,39,48)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.