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