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