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