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