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