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