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