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