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