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