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