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)(33,34)(35,39)(36,44)(37,41)(38,42)(40,46)(43,47)(45,48)(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)(35,42)(38,39)(43,45)(47,48)(2,9)(5,8)(6,15)(11,12)(19,25)(21,29)(23,26)(24,28)(33,35,37,42)(34,38,41,39)(36,45,46,43)(40,48,44,47)(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)(33,34)(35,38)(36,40)(37,41)(39,42)(43,47)(44,46)(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)(33,35)(34,39)(36,43)(37,42)(38,41)(40,48)(44,47)(45,46)(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)(33,36,37,46)(34,40,41,44)(35,43,42,45)(38,47,39,48)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.