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