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