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