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