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