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