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