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