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