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