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