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