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