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