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