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