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