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