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