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