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