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)(17,18,23,25)(19,24,27,31)(20,22,29,32)(21,26,28,30)(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)(17,19,23,27)(18,24,25,31)(20,28,29,21)(22,30,32,26)(34,39)(36,46)(40,43)(42,44)(2,6)(7,9)(8,12)(14,15)(18,25)(19,27)(20,29)(26,30)(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)(18,22)(19,28)(21,27)(23,29)(24,30)(25,32)(26,31)(33,35)(34,40)(36,42)(37,41)(38,45)(39,43)(44,46)(47,48) involution — undirected(1,3)(2,7)(4,10)(5,11)(6,9)(8,14)(12,15)(13,16)(17,21,23,28)(18,26,25,30)(19,29,27,20)(22,24,32,31)(33,36,38,46)(34,41,39,48)(35,44,45,42)(37,40,47,43)(1,4,5,13)(2,8,6,12)(3,10,11,16)(7,14,9,15)(17,22)(18,20)(19,30)(21,31)(23,32)(24,28)(25,29)(26,27)(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.