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