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)(17,18,22,26)(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)(2,5)(4,9)(6,8)(7,10)(11,13)(12,15)(14,16)(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(2,8)(3,10)(6,7)(9,16)(11,12)(14,15)(23,39)(27,43)(40,46)(41,45) involution — undirected(1,4)(2,9)(3,11)(5,13)(6,15)(7,14)(8,16)(10,12)(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.