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