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