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