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