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