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