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