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