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