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