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