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