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