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