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