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