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