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