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