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