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