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