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