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