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