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