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