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