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