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