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