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