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