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