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