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