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