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