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