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