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