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