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