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