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