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