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