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