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