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