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)(17,18)(19,29)(20,33)(21,26)(22,28)(23,27)(24,31)(25,34)(30,38)(32,39)(35,41)(36,40)(37,42)(43,46)(44,47)(45,48) involution — undirected(4,13)(8,12)(9,16)(11,14)(17,19)(18,24)(20,30)(21,36)(22,31)(23,32)(25,38)(26,29)(27,40)(28,39)(33,47)(34,46)(35,45)(37,44)(41,43)(42,48) involution — undirected(1,3)(2,6)(4,14)(5,10)(7,15)(8,16)(9,12)(11,13)(17,20)(18,25)(19,30)(21,34)(22,37)(23,35)(24,38)(26,41)(27,42)(28,33)(29,43)(31,44)(32,45)(36,46)(39,47)(40,48) involution — undirected(2,7)(6,15)(8,12)(9,16)(17,21,23,22)(18,26,27,28)(19,31,32,36)(20,34,35,37)(24,39,40,29)(25,41,42,33)(30,44,45,46)(38,47,48,43)(18,27)(20,35)(24,40)(26,28)(29,39)(30,45)(34,37)(44,46) 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.