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