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