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