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