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