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