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