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