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