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