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