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