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