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