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