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