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