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)(19,27)(20,23)(21,34)(22,35)(24,30)(25,29)(26,33)(28,39)(31,46)(32,47)(36,43)(37,42)(38,48)(40,45)(41,44)(1,3,5,4)(2,6,8,7)(9,11,12,15)(10,13,14,16)(18,23)(19,28)(25,37)(26,35)(30,43)(31,44)(34,47)(45,48)(11,15)(13,16)(17,19,29,45,22,31,32,43,20,28,42,48,33,44,21,30)(18,24,34,41,26,38,37,39,23,36,47,46,35,40,25,27)(1,4,5,3)(2,7,8,6)(18,23)(24,36)(25,37)(26,35)(27,39)(34,47)(38,40)(41,46)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.