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