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