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