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