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