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