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