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