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