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