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