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