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