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