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