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