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)(17,18,23,29)(19,30,34,40)(20,28,22,26)(21,25,37,44)(24,33,41,31)(27,35,43,36)(32,38,46,39)(42,47,48,45)(1,3,6,14)(2,7,9,16)(4,13,5,12)(8,11,15,10)(17,19,23,34)(18,24,29,41)(20,33,22,31)(21,32,37,46)(25,42,44,48)(26,40,28,30)(27,39,43,38)(35,47,36,45)(1,2)(3,11)(4,8)(5,15)(6,9)(7,12)(10,14)(13,16)(18,25)(19,31)(20,22)(21,36)(24,38)(26,43)(27,28)(29,44)(30,42)(32,46)(33,34)(35,37)(39,41)(40,48) 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.