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