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