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