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