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