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