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