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