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