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