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