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