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