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