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