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