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