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