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