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)(11,13)(12,14)(15,16)(17,18,21,25,22,26,33,39,20,23,31,34,32,35,44,45)(19,27,29,40,30,41,43,48,28,24,36,37,42,38,46,47)(1,3)(2,5)(4,8)(6,7)(9,11)(10,13)(12,15)(14,16)(18,23)(19,28)(25,34)(26,35)(29,36)(30,42)(39,45)(43,46) involution — undirected(3,8)(5,7)(10,14)(11,15)(17,19)(18,24)(20,28)(21,29)(22,30)(23,27)(25,37)(26,38)(31,36)(32,42)(33,43)(34,40)(35,41)(39,47)(44,46)(45,48) involution — undirected(2,6)(3,8)(10,14)(13,16)(19,28)(24,27)(29,36)(30,42)(37,40)(38,41)(43,46)(47,48) 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.