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