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