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