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