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