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