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