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