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