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