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