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)(19,24)(20,26)(21,25)(22,27)(23,28)(29,30)(31,32)(33,34)(35,36)(37,42)(38,43)(39,40)(41,48)(44,46)(45,47)(2,3)(7,9)(8,10)(15,16)(17,19,23,21)(18,24,28,25)(20,31,27,29)(22,30,26,32)(34,40)(35,41)(42,43)(44,45)(2,3)(7,9)(8,10)(15,16)(17,19,23,21)(18,25,28,24)(20,29,27,31)(22,30,26,32)(33,35,39,41)(34,36,40,48)(37,44,38,45)(42,46,43,47)(1,3,6,2)(4,9,12,7)(5,8,14,10)(11,15,13,16)(17,20,23,27)(18,26,28,22)(19,29,21,31)(24,30,25,32)(33,36)(34,41)(35,40)(37,46)(38,47)(39,48)(42,45)(43,44)(1,4)(2,7)(3,9)(5,13)(6,12)(8,16)(10,15)(11,14)(17,21,23,19)(18,24,28,25)(20,31,27,29)(22,32,26,30)(33,37,39,38)(34,42,40,43)(35,44,41,45)(36,46,48,47)(1,5)(2,8)(3,10)(4,11)(6,14)(7,15)(9,16)(12,13)(17,22,23,26)(18,27,28,20)(19,30,21,32)(24,29,25,31)(33,38,39,37)(34,43,40,42)(35,45,41,44)(36,47,48,46)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.