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