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