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