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