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