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