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