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