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