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