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