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