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