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