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