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