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