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