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