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