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