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