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