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