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