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