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