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