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