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