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