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