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