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