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