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