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