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