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