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