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