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