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