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