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