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