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