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)(17,18,22,23)(19,24,25,20)(21,29,31,26)(27,28,30,32)(34,35)(37,45)(39,41)(43,48)(10,14)(15,16)(18,23)(20,24)(26,29)(28,32)(33,34,38,35)(36,41,44,39)(37,42,45,40)(43,46,48,47)(1,3,5,4)(2,6,8,7)(9,10)(11,15)(12,16)(13,14)(17,19)(18,24)(20,23)(21,30)(22,25)(26,28)(27,31)(29,32)(33,35,38,34)(36,41,44,39)(37,40,45,42)(43,46,48,47)(1,2)(3,6)(4,7)(5,8)(9,11,13,12)(10,15,14,16)(17,20,22,24)(18,25,23,19)(21,28,31,32)(26,30,29,27)(33,36)(34,39)(35,41)(37,43)(38,44)(40,46)(42,47)(45,48)(1,4,5,3)(2,7,8,6)(9,12,13,11)(10,16,14,15)(17,21,22,31)(18,26,23,29)(19,27,25,30)(20,28,24,32)(33,37,38,45)(34,40,35,42)(36,43,44,48)(39,46,41,47)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.