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