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