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