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