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