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