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