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