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