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