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