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