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