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