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)(33,34,40,44)(35,43,38,39)(36,42,37,41)(45,48,46,47)(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)(33,35,40,38)(34,39,44,43)(36,45,37,46)(41,48,42,47)(3,6)(8,10)(11,13)(15,16)(18,23)(19,25)(24,32)(26,27)(33,36,40,37)(34,41,44,42)(35,45,38,46)(39,48,43,47)(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)(34,42,44,41)(35,45,38,46)(39,48,43,47)(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)(33,38,40,35)(34,43,44,39)(36,46,37,45)(41,47,42,48)(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)(33,39,40,43)(34,35,44,38)(36,47,37,48)(41,46,42,45)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.