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