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