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