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