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