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)(17,18,21,22)(19,23,25,29)(20,27,28,24)(26,32,31,30)(33,34)(35,39)(36,38)(37,40)(41,47)(42,43)(44,46)(45,48)(2,5)(6,8)(9,11,12,15)(10,13,14,16)(18,22)(19,25)(20,28)(30,32)(34,36)(39,43)(40,44)(47,48)(1,2)(3,6)(4,5)(7,8)(9,11)(10,13)(12,15)(14,16)(17,18)(19,23)(20,27)(21,22)(24,28)(25,29)(26,32)(30,31)(33,35,38,42)(34,39,36,43)(37,45,46,41)(40,48,44,47)(9,10)(11,13)(12,14)(15,16)(17,19,21,25)(18,23,22,29)(20,26,28,31)(24,30,27,32)(33,36,38,34)(35,39,42,43)(37,44,46,40)(41,47,45,48)(1,3)(2,6)(4,7)(5,8)(9,10)(11,13)(12,14)(15,16)(17,20)(18,24)(19,26)(21,28)(22,27)(23,30)(25,31)(29,32)(33,37,38,46)(34,40,36,44)(35,41,42,45)(39,47,43,48)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.