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