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