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