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