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