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)(19,28,32,24)(20,34,38,44)(21,27,40,26)(25,39,37,36)(29,43,47,48)(30,31,33,42)(35,45,46,41)(1,3,5,11)(2,6,7,9)(4,12,13,10)(8,16,15,14)(17,19,23,32)(18,24,22,28)(20,35,38,46)(21,33,40,30)(25,43,37,48)(26,42,27,31)(29,36,47,39)(34,41,44,45)(17,20,21,36,23,38,40,39)(18,25,26,34,22,37,27,44)(19,29,33,35,32,47,30,46)(24,41,42,48,28,45,31,43)(2,7)(6,9)(8,15)(14,16)(17,21,23,40)(18,26,22,27)(19,30,32,33)(20,36,38,39)(24,31,28,42)(25,34,37,44)(29,46,47,35)(41,43,45,48)(1,4,5,13)(2,8,7,15)(3,10,11,12)(6,14,9,16)(17,22,23,18)(19,31,32,42)(20,37,38,25)(21,27,40,26)(24,30,28,33)(29,43,47,48)(34,36,44,39)(35,41,46,45)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.