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