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)(19,27)(20,24)(21,35,36,25)(22,26)(23,29,38,47)(28,43)(30,44)(31,48)(32,41,33,40)(34,42)(37,46,39,45)(1,3)(2,7)(4,12)(5,14)(6,13)(8,15)(9,11)(10,16)(17,19,22,30)(18,23,26,38)(20,31,34,28)(21,29,36,47)(24,39,42,37)(25,27,35,44)(32,46,33,45)(40,43,41,48)(2,8)(7,15)(9,10)(11,16)(17,20,22,34)(18,24,26,42)(19,28,30,31)(21,33,36,32)(23,37,38,39)(25,41,35,40)(27,43,44,48)(29,46,47,45)(1,4,6,5)(2,9,8,10)(3,12,13,14)(7,11,15,16)(17,21)(18,25)(19,29)(20,32)(22,36)(23,27)(24,40)(26,35)(28,45)(30,47)(31,46)(33,34)(37,48)(38,44)(39,43)(41,42)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.