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