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