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