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