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