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