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