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