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