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