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