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