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