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)(17,18,23,29,24,30,22,28)(19,31,34,43,35,42,33,25)(20,26,37,45,38,46,40,41)(21,27,32,47,39,44,36,48)(9,10)(11,15)(12,14)(13,16)(17,19,24,35)(18,25,30,43)(20,36,38,32)(21,37,39,40)(22,34,23,33)(26,44,46,27)(28,31,29,42)(41,48,45,47)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(17,20,24,38)(18,26,30,46)(19,32,35,36)(21,34,39,33)(22,40,23,37)(25,27,43,44)(28,41,29,45)(31,47,42,48)(11,16)(13,15)(17,21,22,36,24,39,23,32)(18,27,28,48,30,44,29,47)(19,20,33,40,35,38,34,37)(25,41,42,46,43,45,31,26)(1,3,4,7)(2,6,5,8)(10,14)(13,15)(17,22,24,23)(18,28,30,29)(19,33,35,34)(20,37,38,40)(21,32,39,36)(25,42,43,31)(26,45,46,41)(27,47,44,48)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.