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