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