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