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