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