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