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