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