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