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