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)(17,18,23,20)(19,24,21,25)(22,28,30,26)(27,32,29,31)(34,37)(39,42)(40,45)(46,48)(2,7)(5,15)(8,11)(9,13)(17,19)(18,24)(20,25)(21,23)(22,29)(26,32)(27,30)(28,31)(36,44)(40,45)(41,47)(46,48) involution — undirected(3,12)(4,14)(8,11)(9,13)(18,20)(19,21)(26,28)(27,29)(33,34,38,37)(35,39,43,42)(36,40,44,45)(41,46,47,48)(1,3)(2,8)(4,10)(5,13)(6,12)(7,11)(9,15)(14,16)(17,20,23,18)(19,25,21,24)(22,28,30,26)(27,32,29,31)(33,35,38,43)(34,39,37,42)(36,41,44,47)(40,46,45,48)(1,4)(2,9)(3,10)(5,11)(6,14)(7,13)(8,15)(12,16)(17,21,23,19)(18,25,20,24)(22,29,30,27)(26,32,28,31)(33,36,38,44)(34,40,37,45)(35,41,43,47)(39,46,42,48)(1,5,6,15)(2,10,7,16)(3,13,12,9)(4,11,14,8)(17,22,23,30)(18,26,20,28)(19,27,21,29)(24,31,25,32)(33,37,38,34)(35,42,43,39)(36,45,44,40)(41,48,47,46)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.