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