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