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