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