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)(17,18,23,22)(19,24,29,28)(20,30,21,25)(26,32,27,31)(36,44)(40,45)(43,48)(46,47)(1,3,7,4)(2,8,12,9)(5,15,11,13)(6,14,10,16)(17,19,23,29)(18,24,22,28)(20,27,21,26)(25,32,30,31)(33,34)(35,39)(36,45)(37,41)(38,42)(40,44)(43,46)(47,48)(1,3,7,4)(2,9,12,8)(5,13,11,15)(6,14,10,16)(17,20,23,21)(18,25,22,30)(19,26,29,27)(24,31,28,32)(33,35)(34,37)(36,43)(38,41)(39,42)(40,46)(44,48)(45,47)(1,4,7,3)(2,9,12,8)(5,15,11,13)(6,14,10,16)(17,21,23,20)(18,25,22,30)(19,27,29,26)(24,31,28,32)(33,35)(34,39)(36,43)(37,42)(38,41)(40,47)(44,48)(45,46)(1,5,7,11)(2,10,12,6)(3,13,4,15)(8,14,9,16)(17,19)(18,24)(20,26)(21,27)(22,28)(23,29)(25,31)(30,32)(33,36)(34,40)(35,43)(37,46)(38,44)(39,47)(41,48)(42,45)(1,6,7,10)(2,11,12,5)(3,14,4,16)(8,13,9,15)(17,22,23,18)(19,28,29,24)(20,30,21,25)(26,32,27,31)(33,37,38,39)(34,41,42,35)(36,46,44,47)(40,48,45,43)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.