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