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