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