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