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