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