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