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