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