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)(20,31,29,41,33,38,37,25)(21,34,35,42,36,26,30,39)(32,45,43,40,47,44,46,48)(1,2)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16)(17,19,22,23)(18,24,27,28)(20,29,33,37)(21,35,36,30)(25,38,41,31)(26,42,34,39)(32,46,47,43)(40,44,48,45)(10,13)(11,15)(17,20,22,33)(18,25,27,41)(19,29,23,37)(21,32,36,47)(24,38,28,31)(26,40,34,48)(30,43,35,46)(39,45,42,44)(2,5)(6,8)(9,11,12,15)(10,14,13,16)(17,21)(18,26)(19,30)(20,32)(22,36)(23,35)(24,39)(25,40)(27,34)(28,42)(29,43)(31,44)(33,47)(37,46)(38,45)(41,48)(1,3,4,7)(2,6,5,8)(10,13)(14,16)(21,36)(26,34)(30,35)(32,47)(39,42)(40,48)(43,46)(44,45)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.