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