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