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